May 16 – 18, 2025
College of Management, National Formosa University 國立虎尾科技大學第三校區文理暨管理大樓
Asia/Taipei timezone
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A TESS Full-Sky Map for Low Surface Brightness Astronomy

Not scheduled
20m
International Conference Hall 圓形國際會議廳 (College of Management, National Formosa University 國立虎尾科技大學第三校區文理暨管理大樓)

International Conference Hall 圓形國際會議廳

College of Management, National Formosa University 國立虎尾科技大學第三校區文理暨管理大樓

632 雲林縣虎尾鎮民主路63號文理暨管理大樓 第三校區圓形國際會議廳(文理暨管理大樓一樓) National Formosa University, 1F College of Managment, Huwei Township, Yunlin County, Taiwan
Board: 31
Poster Poster-EA

Speaker

Po-Han Chen (ASIAA)

Description

The Transiting Exoplanet Survey Satellite (TESS) was primarily designed to monitor stellar light curves and detect exoplanets. However, its full-frame images (FFIs) could be valuable for studying low surface brightness objects. In this work, we construct a full-sky map from TESS image patches in HEALPix format with a pixel size of 1.7'×1.7'. To enhance the usability of the map for extragalactic studies, we remove about 4 hundred millions foreground stars detected in Gaia. The resulting map provides a powerful tool for stacking analyses of extended structures beyond the Milky Way, including galaxies, galaxy clusters, and large-scale structures. This map offers new opportunities for exploring faint astrophysical phenomena at large scales.

Section Galaxy/Extragalactic

Primary authors

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